Table 2. Mean and standard deviation of plasma folate and vitamin B12 in studied subjects, in different age, and sex groups .
| Variables | Folate (ng/ml) | Vitamin B12(pg/ml) | |
| Mean (SD) | Mean (SD) | ||
| Age (yr) | 18-30 (n=29) | 4.31(4.73) | 384.65 (311.27) |
| 31-50 (n=33) | 6.63 (7.38) | 399.29 (401.29) | |
| 51-70 (n=8) | 3.56 (4.24) | 362.84 (247.29) | |
| Sex | Female (n=54) | 5.36 (6.37) | 420.43 (374.42) |
| Male (n=16) | 4.57 (5.33) | 283.15 (206.69) |
In different age and sex groups, no significant differences were observed for plasma folate and vitamin B12 levels